How to Set the PXE Service Point Response to PXE Requests

Article
10/04/2022

In Configuration Manager, you set the distribution point response to incoming PXE requests by setting the IsActive embedded property.

IsActive has the following possible values.

Value	Description
0	The distribution point does not respond to PXE requests.
1	The distribution service point responds to requests.

To set the distribution point response to PXE requests

Set up a connection to the SMS Provider. For more information, see SMS Provider fundamentals.
Make a connection to the distribution point instance with PXE enabled.
Get the embedded properties.
Update the IsActive embedded property.
Commit the changes to the site control file.

Example

The following example method sets the response for a PXE request based on the supplied String value (allowResponse).

For information about calling the sample code, see Calling Configuration Manager Code Snippets.

public void SetAllowResponse(WqlConnectionManager connection,                                  string siteCode,                                  string serverName,                                  string allowResponse){    try    {        //Connect to distribution point instance.                        IResultObject siteRole = connection.GetInstance("SMS_SCI_SysResUse.FileType=2,ItemName=\"[\\\"Display=\\\\\\\\" + serverName + "\\\\\\\"]MSWNET:[\\\"SMS_SITE=" + siteCode + "\\\"]\\\\\\\\" + serverName + "\\\\,SMS Distribution Point\",ItemType=\"System Resource Usage\",SiteCode=" + "\"" + siteCode + "\"");        // Create temporary copy of the embedded properties.        Dictionary<string, IResultObject> embeddedProperties = siteRole.EmbeddedProperties;        // Enumerate through the embedded properties and makes changes as needed.        foreach (KeyValuePair<string, IResultObject> kvp in siteRole.EmbeddedProperties)        {            // Setting: IsActive            if (kvp.Value.PropertyList["PropertyName"] == "IsActive")            {                // Get current property value.                Console.WriteLine();                Console.WriteLine("Property: {0}", kvp.Value.PropertyList["PropertyName"]);                Console.WriteLine("Current value: {0}", kvp.Value.PropertyList["Value"]);                // Change value.                embeddedProperties["IsActive"]["Value"].StringValue = allowResponse;                Console.WriteLine("Setting the {0} value to {1}.", kvp.Value.PropertyList["PropertyName"], allowResponse);            }        }        // Store the settings that have changed.        siteRole.EmbeddedProperties = embeddedProperties;        // Save the settings.         siteRole.Put();    }    catch (SmsException ex)    {        Console.WriteLine();        Console.WriteLine("Failed. Error: " + ex.InnerException.Message);    }}

The example method has the following parameters:

Parameter	Type	Description
`connection`	Managed: `WqlConnectionManager`	A valid connection to the SMS Provider.
`siteCode`	Managed: `String`	The Configuration Manager site code.
`serverName`	Managed: `String`	The server name. For example, `"SERVER1.DOMAIN1.COM"`.
`allowResponse`	Managed: `String`	The value to set whether the distribution point will respond to PXE requests. - 0 - The distribution point does not respond to PXE requests. - 1 - The PXE service point responds to requests from unknown computers.

Compiling the Code

The C# example has the following compilation requirements:

Namespaces

System

System.Collections.Generic

System.Text

Microsoft.ConfigurationManagement.ManagementProvider

Microsoft.ConfigurationManagement.ManagementProvider.WqlQueryEngine

Assembly

microsoft.configurationmanagement.managementprovider

adminui.wqlqueryengine

Robust Programming

For more information about error handling, see About Configuration Manager Errors.

.NET Framework Security

For more information about securing Configuration Manager applications, see Configuration Manager role-based administration.

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